干旱区生态环境知识资源中心(Arid): Does aridity affect spatial ecology? Scaling of home range size in small carnivorous marsupials

Arid

DOI	10.1007/s00114-019-1636-7
	Does aridity affect spatial ecology? Scaling of home range size in small carnivorous marsupials
	Kortner, Gerhard 1; Trachtenberg, Aaron 1,2; Geiser, Fritz 1
通讯作者	Kortner, Gerhard
来源期刊	SCIENCE OF NATURE
ISSN	0028-1042
EISSN	1432-1904
出版年	2019
卷号	106 期号:7-8
英文摘要	The aim of our study was to determine how body mass affects home range size in carnivorous marsupials (dasyurids) and whether those species living in desert environments require relatively larger areas than their mesic counterparts. The movement patterns of two sympatric species of desert dasyurids (body mass 16 and 105 g) were investigated via radio-telemetry in southwestern Queensland and compared with published records for other Australian dasyurids. Both species monitored occupied stable home ranges. For all dasyurids, home range size scaled with body mass with a coefficient of >1.2, almost twice that for metabolic rate. Generally, males occupied larger home ranges than females, even after accounting for the size dimorphism common in dasyurids. Of the three environmental variables tested, primary productivity and habitat, a categorical variable based on the 500 mm rainfall isopleth, further improved model performance demonstrating that arid species generally occupy larger home ranges. Similar patterns were still present in the dataset after correcting for phylogeny. Consequently, the trend towards relatively larger home ranges with decreasing habitat productivity can be attributed to environmental factors and was not a result of taxonomic affiliation. We therefore conclude that alternative avenues to reduce energy requirements on an individual and population level (i.e. torpor, basking and population density) do not fully compensate for the low resource availability of deserts demanding an increase in home range size.
英文关键词	Arid versus mesic Energy turnover Locomotion Torpor
类型	Article
语种	英语
国家	Australia ; Canada
收录类别	SCI-E
WOS记录号	WOS:000474493900003
WOS关键词	SMINTHOPSIS-CRASSICAUDATA MARSUPIALIA ; BODY-SIZE ; DASYURUS-MACULATUS ; SMALL MAMMALS ; DAILY TORPOR ; PHASCOGALE-TAPOATAFA ; SOCIAL-ORGANIZATION ; MOVEMENT PATTERNS ; THERMAL BIOLOGY ; SIMPSON DESERT
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218575
作者单位	1.Univ New England, Ctr Behav & Physiol Ecol, Zool W077, Armidale, NSW 2351, Australia; 2.Univ Calgary, Cumming Sch Med, Calgary, AB, Canada
推荐引用方式 GB/T 7714	Kortner, Gerhard,Trachtenberg, Aaron,Geiser, Fritz. Does aridity affect spatial ecology? Scaling of home range size in small carnivorous marsupials[J],2019,106(7-8).
APA	Kortner, Gerhard,Trachtenberg, Aaron,&Geiser, Fritz.(2019).Does aridity affect spatial ecology? Scaling of home range size in small carnivorous marsupials.SCIENCE OF NATURE,106(7-8).
MLA	Kortner, Gerhard,et al."Does aridity affect spatial ecology? Scaling of home range size in small carnivorous marsupials".SCIENCE OF NATURE 106.7-8(2019).